This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Tubes tested at – 72 – 74 – 74 – 76.
Matched Pair RCA 22DE4 Vacuum Tubes Tested NOS ON TV – 7 For Cayin HA-3A
This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Tubes tested at – 74 – 74.
GE Matched Quad 22DE4 Vacuum Tubes Tested NOS ON TV 7 For Cayin HA-300MK2
This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Tubes tested at – 74 – 74 – 74 – 76.
5 Date Matching RCA 22DE4 Vacuum Tubes Tested NOS ON TV 7 For Cayin HA-300MK2
This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Average new tube value – 70. Date code on all 5 – PV MXMI. Minimum value – 50.
Lot of 3 Selectron 22DE4 Vacuum Tubes Tested NOS ON TV 7 For Cayin HA-300MK2
This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Tubes tested at – 78 – 78 – 78. I will always list original photos of actual item you are receiving.